pennsylvanian
/ˌpɛn.sɪlˈveɪ.ni.ən/
noun 2adj 2
Definitions
noun
1
A native or resident of the state of Pennsylvania in the United States of America.
2
Any of the three Pennsylvanian epochs.
adj
1
Of, or pertaining to the state of Pennsylvania.
2
Of any of the three geologic epochs (lower, middle and upper) within the Carboniferous period from 318 to 299 million years ago; marked by a high oxygen atmosphere and the rise of reptiles and winged insects.
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